<!DOCTYPE html>
<meta charset="utf-8">
<title>Zoom + Pan</title>
<script src="../../d3.v2.js"></script>
<style>

svg {
  font: 10px sans-serif;
  shape-rendering: crispEdges;
}

rect {
  fill: #ddd;
}

.axis path, .axis line {
  fill: none;
  stroke: #fff;
}

</style>
<body>
<script>

var margin = {top: 0, right: 0, bottom: 12, left: 24},
    width = 960 - margin.left - margin.right,
    height = 500 - margin.top - margin.bottom;

var x = d3.scale.linear()
    .domain([-width / 2, width / 2])
    .range([0, width]);

var y = d3.scale.linear()
    .domain([-height / 2, height / 2])
    .range([height, 0]);

var svg = d3.select("body").append("svg")
    .attr("width", width + margin.left + margin.right)
    .attr("height", height + margin.top + margin.bottom)
  .append("g")
    .attr("transform", "translate(" + margin.left + "," + margin.top + ")")
    .call(d3.behavior.zoom().scaleExtent([1, 8]).on("zoom", zoom))
  .append("g");

svg.append("rect")
    .attr("width", width)
    .attr("height", height);

svg.append("g")
    .attr("class", "x axis")
    .attr("transform", "translate(0," + height + ")")
    .call(d3.svg.axis().scale(x).tickSize(-height).orient("bottom"));

svg.append("g")
    .attr("class", "y axis")
    .call(d3.svg.axis().scale(y).ticks(5).tickSize(-width).orient("left"));

function zoom() {
  svg.attr("transform", "translate(" + d3.event.translate + ")scale(" + d3.event.scale + ")");
}

</script>
